File: dont_reverse.ll

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llvm 2.6-9.1
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; RUN: llvm-as < %s | opt -loop-reduce | llvm-dis \
; RUN:    | grep {icmp eq i2 %lsr.iv.next, %xmp4344}

; Don't reverse the iteration if the rhs of the compare is defined
; inside the loop.

define void @Fill_Buffer() nounwind {
entry:
	br label %bb8

bb8:
	%indvar34 = phi i32 [ 0, %entry ], [ %indvar.next35, %bb8 ]
	%indvar3451 = trunc i32 %indvar34 to i2
	%xmp4344 = xor i2 0, -1
	%xmp104 = icmp eq i2 %indvar3451, %xmp4344
	%indvar.next35 = add i32 %indvar34, 1
	br i1 %xmp104, label %bb10, label %bb8

bb10:
	unreachable
}